18034487 has 2 divisors, whose sum is σ = 18034488. Its totient is φ = 18034486.

The previous prime is 18034481. The next prime is 18034493. The reversal of 18034487 is 78443081.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (18034481) and next prime (18034493).

It is an emirp because it is prime and its reverse (78443081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18034487 - 2²⁰ = 16985911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18034481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9017243 + 9017244.

It is an arithmetic number, because the mean of its divisors is an integer number (9017244).

Almost surely, 2^18034487 is an apocalyptic number.

18034487 is a deficient number, since it is larger than the sum of its proper divisors (1).

18034487 is an equidigital number, since it uses as much as digits as its factorization.

18034487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 18034487 is about 4246.7030741506. The cubic root of 18034487 is about 262.2414058058.

The spelling of 18034487 in words is "eighteen million, thirty-four thousand, four hundred eighty-seven".